US10258807B2 - UV light therapy apparatus for treatment of vitamin D deficiency and to a building comprising the same - Google Patents

UV light therapy apparatus for treatment of vitamin D deficiency and to a building comprising the same Download PDF

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Publication number
US10258807B2
US10258807B2 US13/691,921 US201213691921A US10258807B2 US 10258807 B2 US10258807 B2 US 10258807B2 US 201213691921 A US201213691921 A US 201213691921A US 10258807 B2 US10258807 B2 US 10258807B2
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Prior art keywords
light
reflector
square area
collector
room
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Expired - Fee Related
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US13/691,921
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US20130144366A1 (en
Inventor
Mamduh A. EL-MESSEIRY
Abdulaziz BIN SAEED
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King Saud University
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King Saud University
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/063—Radiation therapy using light comprising light transmitting means, e.g. optical fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/065—Light sources therefor
    • A61N2005/0657—Natural light sources, e.g. captured sunlight
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
    • A61N2005/0661—Radiation therapy using light characterised by the wavelength of light used ultraviolet

Definitions

  • the present invention relates to an UV light therapy apparatus for treatment of vitamin D deficiency and to a building comprising the same.
  • Vitamin D is a group of fat-soluble secosteroids. In humans vitamin D is unique both because it functions as a prohormone and the body can synthesize it (as vitamin D 3 ) when sun exposure is adequate. Vitamin D 3 is made in the skin when 7-dehydrocholesterol reacts with ultraviolet light (UVB) at wavelengths between 270 and 300 nm, with peak synthesis occurring between 295 and 297 nm. These wavelengths are present in sunlight when the UV index is greater than three. At a UV index greater than three, which occurs daily within the tropics, daily during the spring and summer seasons in temperate regions, and almost never within the arctic circles, Vitamin D 3 can be made in the skin.
  • UVB ultraviolet light
  • Vitamin D deficiency is currently recognized as a global epidemic. Vitamin D deficiency or insufficiency affects one billion people worldwide, as deduced from several studies (see for example Holick M. F.: “Vitamin D deficiency”, N. Engl J. Med. 2007, vol. 3: 266-281). A major cause of vitamin D deficiency is inadequate exposure to sunlight. Dealing with the sun can be like walking a tight wire. Too much and you can get skin cancer. Too little and you can get vitamin D deficiency.
  • the amount of time for adequate exposure depends on time of day, season, latitude, skin pigmentation, and the area of skin surface that has no sun protection (see Bill Sadir “Live longer and healthier with 30 minutes of sunshine”, Knowledge of Health, Inc., 2008).
  • the sun exposure of a person in a bathing suit of 1 minimal erythema dose is equivalent to ingesting 20.000 IU (International Unit; in pharmacology, the International Unit is a unit of measurement for the amount of a substance, based on biological activity or effect; it is abbreviated as IU and used to quantify vitamins, hormones, some medications, vaccines, blood products and similar biologically active substances) of vitamin D (about 5-15 minutes between 11 AM and 2 PM in Boston) (see Michael F.
  • an UV light therapy apparatus for treatment of vitamin D deficiency, comprising: a daylight and/or sunlight collector for collecting daylight and/or sunlight over a collector square area, a light transmission component for transmitting the light collected by the collector to the interior of a room of a building, an optical filter for transmission of UV-light included in the daylight and/or sunlight, and a light distributor for distributing the UV-light over a square area of the room, wherein the square area is a part or all of the room square area and larger than the collector square area.
  • said apparatus is a stationary apparatus.
  • the collector is arranged on the roof or at the façade of the building.
  • the collector comprises a reflector dish antenna, preferably a multiple reflector dish antenna.
  • the optical filter is arranged within the collector.
  • the light transmission component may comprise a lightpipe, preferably a UV-lightpipe, in particular a vertical extending lightpipe, preferably extending outside of the building.
  • the light transmission component may comprise a deflecting means for deflecting the light, preferably in a horizontal direction.
  • the light distributor comprises one or more optical micro-reflectors.
  • the ratio of the collector square area and the square area is such that the UV dispersion in the room is more than about 100 times and preferably more than about 200 times less than the UV dispersion outside of the building.
  • the ratio of the collector square area and the square area is such that the UVB scale index ranges from about 0.03 to about 0.05 in the room when the UVB scale index ranges from about 6 to about 10 outside of the building.
  • the ultraviolet index or UV index is an international standard measurement of the strength of the ultraviolet (UV) radiation from the sun at a particular place on a particular day. It is a scale primarily used in daily forecasts aimed at the general public.
  • the UV index is a linear scale, with higher values representing the risk level of skin damage due to UV exposure. An index of 0 corresponds to zero UV irradiation, as is essentially the case at nighttime.
  • index 10 corresponds roughly to midday sun and a clear sky
  • indices greater than 11 are quite common in the southern hemisphere where the ozone layer is depleted.
  • the numbers are related to the amount of UV radiation reaching the surface of the earth, measured in W/m 2 , but the relationship is not simple, because UV power is spread unevenly over a spectrum of wavelengths. The shorter wavelengths are much more damaging.
  • the index aims to create a number that cannot be expressed in physical units, but is a good indication of likely skin damage.
  • the apparatus comprises a controller for controlling the UV-dosage and switching-off the UV radiation when a predetermined UV-dosage is reached.
  • the invention is made on the surprising findings to collect only the ultraviolet wave for transmitting it and distributing only the useful UV-part into a building at a desired level.
  • the invention brings natural harmless light indoor at the necessary dose.
  • the UVB scale index ranges from 1 to 13, with 1 also including all lower values, and a value of 11 or higher categorized as extreme. For example in Riyadh (Saudi Arabia), the UVB index reaches 11 at summer noon. People are trying all the time to avoid direct exposure to sunlight. Even, when women are exposed to sunlight, they are wearing Hijab or Neqab. Also men are keeping away from of sunlight to avoid heat as their traditional dress covers the skin almost completely. For example at home, school and offices where people spend most of the day, the windows are small and coated glass is installed to avoid heat.
  • the present invention provides an environmental engineering tool to bring back natural ultraviolet light inside for example houses and schools to reduce the prevalence of vitamin D deficiency.
  • FIG. 1 shows a side view of a building comprising an UV light therapy apparatus for treatment of vitamin D deficiency according to a special embodiment of the invention, partially in section;
  • FIG. 2 shows a top view of a daylight and/or sunlight collector for collecting daylight and/or sunlight over a collector square area of the apparatus of FIG. 1 ;
  • FIG. 3 shows a sectional elevation view A-A of FIG. 2 ;
  • FIG. 4 shows a sectional elevation view B-B of FIG. 2 ;
  • FIG. 5 shows the principle of a reflector dish antenna as part of a daylight and/or sunlight collector shown in FIGS. 2 to 4 ;
  • FIG. 6 shows a sectional elevation view A-A of a light transmission component for transmitting the light collected by the collector shown in FIGS. 2 to 4 to the interior of a room of the building shown in FIG. 1 ;
  • FIG. 7 shows a sectional plane view B-B of the light transmission component shown in FIG. 6 ;
  • FIG. 8 shows a sectional elevation view A-A of a light distributor for distributing the UV-light over a square area of a room as part of the apparatus shown in FIG. 1 ;
  • FIG. 9 shows a sectional plane view B-B of FIG. 8 .
  • FIG. 1 shows a view into a room 10 of a building, namely a house 12 , in particular a flat-roofed house.
  • Said room is arranged to the outside.
  • the house comprises an UV-light therapy apparatus 14 for treatment of vitamin D deficiency according a particular embodiment of the present invention at the façade 16 of the house 12 .
  • Said apparatus 14 comprises a daylight and/or sunlight collector 18 arranged at the façade 16 at a level that is higher than the flat-roof 20 .
  • said apparatus 14 comprises a light transmission component 22 for transmitting the light collected by the collector 18 to the interior of the room 10 of the house 12 .
  • the daylight and/or sunlight collector 18 comprises a bottom box 26 of aluminium with a thickness of 2 mm for holding a multiple reflector dish antenna 28 and an opposite top box 30 of aluminum with a thickness of 2 mm for holding a multiple sub reflector 32 .
  • Four transparent anti-dust-anti-fog-plastic plates 34 are arranged between the bottom box 26 and the top box 30 for covering the multiple reflector dish antenna 28 and the multiple sub reflector 32 .
  • the collector 18 is essentially conically shaped.
  • the multiple reflector dish antenna 28 reflects daylight and/or sunlight up to the multiple sub reflector 32 to send it back to the end of a vertically extending tube 36 with a diameter of 100 mm that is arranged in the centre of a button box 26 and the multiple reflector dish antenna 28 .
  • Said tube 36 belongs to the light transmission component 22 .
  • the daylight and/or sunlight Before entry into the end of said tube 36 , the daylight and/or sunlight has to pass a visible light filter 38 with a diameter of 100 mm. So said filter 38 allows transmission of only UV-light included in the daylight and/or sunlight.
  • the collector 18 has a height of 320 mm, a length of 404 mm and a width of 304 mm.
  • FIG. 5 shows details of the multiple reflector dish antenna 28 , schematically consisting of reflectors 1 to 5 , and of the multiple sub reflector 32 , consisting of several sub reflectors.
  • the parabolic focal length of the multiple reflector dish antenna 28 is 250 mm and its parabolic diameter is 395 mm.
  • the parabolic focal length of the multiple sub reflector 32 is 50 mm and its parabolic diameter is 76 mm.
  • the angle blocked by the multiple sub reflector 32 is 8° and the angle subtended by the multiple reflector dish antenna 28 is 49°.
  • the multiple reflector dish antenna 28 can be composed of material aluminum covered by highly polished aluminum sheet in the size of 24′′ ⁇ 48′′ and with a thickness 0.02′′ that are used for UV lamp reflectors.
  • the visible light filter 38 can be a glass filter (HU 02) that absorbs visible light and transmits UV-light (UVA and UVB). Such filters are used for UV lighting applications.
  • HU 02 glass filter
  • UVA and UVB UV-light
  • the tube 36 (lightpipe) is made of PVC and covered from inside by highly polished aluminum sheet.
  • the tube 36 has a length of 6000 mm.
  • the light transmission component 22 comprises a 90 degree aluminum elbow 40 .
  • Said elbow 40 is box-shaped and contains a plane reflector 42 and may (also) contain a visible light filter.
  • the elbow 40 also comprises a maintenance door 43 .
  • Said reflector 42 reflects/deflects the vertically propagating light into the horizontal direction. It may be made out of aluminum covered by highly polished aluminum sheet with the size of 24′′ ⁇ 48′′ and a thickness of 0.02′′ for UV lamp reflectors.
  • the distributor 24 When leaving the elbow 40 , the light is horizontally transmitted by a further tube 44 that may be made in the same way as the tube 36 .
  • the distributor 24 is arranged. It consists of a box 46 (s. FIG. 8 ) made of aluminum with a thickness of 4 mm. Said box 46 is covered by an anti-dust-anti-fog-plastic plate 48 . Multiple micro-reflectors 50 are arranged within the box 46 . Said reflectors distribute the light that leaves the tube 44 . The light is distributed to the square area SA of the room 10 .
  • the reflectors 42 are made out of aluminum covered by highly polished aluminum sheet with a size of 24′′ ⁇ 48′′ and a thickness of 0.02′′ used for UV lamp reflectors.
  • the dimensions of the distributor 24 are: height 150 mm, length 150 mm and width 150 mm.
  • the apparatus described above could be modified, for example regarding a shape and dimensions of its components. Also, it could comprise a controller for controlling the UV-dosage and switching-off the UV-radiation when a predetermined UV-dosage is reached.
  • the apparatus described above is designed to catch the direct sunlight at the flat-roof 20 and dispersing the ultraviolet light indoor.
  • the dispersion indoor amount of UVB is calculated as 200 times less than the direct source at transmission device efficiency of 50%.
  • the expected maximum UV index ranges from 6 to 10.
  • the expected indoor UVB scale index ranges from 0.03 to 0.05.
  • the expected dosage for staying for one hour using the apparatus is calculated as ranging from 360 to 600 IU.
  • the current daily recommended dosage of vitamin D for adults with an age of 50 or older is 400 to 600 International Units (IU). But many researchers believe that a higher amount is warranted because of the many health benefits.
  • the USA National Osteoporosis Foundation recommends a daily intake of 800 to 1.000 IU per day.
  • the invention is to provide safe ultraviolet light into for example residential houses as well as into for example school classrooms and governmental offices.
  • the apparatus will protect users from being subjected to extreme heat during exposing to direct sunlight seeking UV-light.
  • the apparatus prohibits dust, insects, flies, smells, heat and event sunlight going through.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)
US13/691,921 2011-12-06 2012-12-03 UV light therapy apparatus for treatment of vitamin D deficiency and to a building comprising the same Expired - Fee Related US10258807B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11192135 2011-12-06
EP11192135.9 2011-12-06
EP11192135.9A EP2602002B1 (de) 2011-12-06 2011-12-06 UV-Licht-Therapievorrichtung zur Behandlung von Vitamin-D-Mangel und Gebäude damit

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US20130144366A1 US20130144366A1 (en) 2013-06-06
US10258807B2 true US10258807B2 (en) 2019-04-16

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6416002B2 (ja) * 2015-01-29 2018-10-31 シャープ株式会社 照明装置および照明システム
US11224759B2 (en) * 2016-10-07 2022-01-18 Signify Holding B.V. Vitamin D lighting system
US10967196B2 (en) 2018-08-08 2021-04-06 United Arab Emirates University Therapeutic method and system for treatment of vitamin D deficiency utilizing a full spectrum of natural solar radiations

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH307244A (de) 1952-12-10 1955-05-31 Wuhrmann Ernst Erhellungseinrichtung für Räume.
US4246477A (en) * 1978-09-18 1981-01-20 R & D Associates Artificial and solar lighting system
GB2230183A (en) 1989-03-28 1990-10-17 Kei Mori An attachment for a light radiating device
US5716442A (en) * 1995-05-26 1998-02-10 Fertig; Robert T. Light pipe with solar bulb energy conversion system
US20010006066A1 (en) * 1998-07-27 2001-07-05 Matthew Cherney Solar energy systems and related hardware
US20070035841A1 (en) * 2005-08-10 2007-02-15 Kinney Lawrence F Direct beam solar lighting system
US20070230209A1 (en) 2006-03-29 2007-10-04 Martin Gregory R Light transmitting building material and method for producing the same
US7339739B1 (en) * 2007-03-30 2008-03-04 Kinney Laurence F Active daylighting and active solar heating system and method
WO2008129278A2 (en) 2007-04-18 2008-10-30 D3Tex Limited Uv-transparent fabric or garment, their method of manufacture and its use in combating vitamin d deficiency
US20090262427A1 (en) 2008-04-16 2009-10-22 National Taiwan University Of Science And Technology Light-concentrating panel
US20100236626A1 (en) * 2009-03-20 2010-09-23 Skyline Solar, Inc. Reflective surface for solar energy collector
US7973235B2 (en) * 2001-09-18 2011-07-05 Ut-Batelle, Llc Hybrid solar lighting distribution systems and components
US20110212410A1 (en) * 2004-03-09 2011-09-01 Ledeep Llc Phototherapy method for treating psoriasis

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH307244A (de) 1952-12-10 1955-05-31 Wuhrmann Ernst Erhellungseinrichtung für Räume.
US4246477A (en) * 1978-09-18 1981-01-20 R & D Associates Artificial and solar lighting system
GB2230183A (en) 1989-03-28 1990-10-17 Kei Mori An attachment for a light radiating device
US5716442A (en) * 1995-05-26 1998-02-10 Fertig; Robert T. Light pipe with solar bulb energy conversion system
US20010006066A1 (en) * 1998-07-27 2001-07-05 Matthew Cherney Solar energy systems and related hardware
US7973235B2 (en) * 2001-09-18 2011-07-05 Ut-Batelle, Llc Hybrid solar lighting distribution systems and components
US20110212410A1 (en) * 2004-03-09 2011-09-01 Ledeep Llc Phototherapy method for treating psoriasis
US20070035841A1 (en) * 2005-08-10 2007-02-15 Kinney Lawrence F Direct beam solar lighting system
US20070230209A1 (en) 2006-03-29 2007-10-04 Martin Gregory R Light transmitting building material and method for producing the same
US7339739B1 (en) * 2007-03-30 2008-03-04 Kinney Laurence F Active daylighting and active solar heating system and method
WO2008129278A2 (en) 2007-04-18 2008-10-30 D3Tex Limited Uv-transparent fabric or garment, their method of manufacture and its use in combating vitamin d deficiency
US20090262427A1 (en) 2008-04-16 2009-10-22 National Taiwan University Of Science And Technology Light-concentrating panel
US20100236626A1 (en) * 2009-03-20 2010-09-23 Skyline Solar, Inc. Reflective surface for solar energy collector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
European Search Report for corresponding EP11192135.9 dated Mar. 6, 2012.

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SA112340052B1 (ar) 2015-09-15
EP2602002B1 (de) 2013-10-23
US20130144366A1 (en) 2013-06-06
EP2602002A1 (de) 2013-06-12

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